I have done it on the 5 or 6 Strat and Tele partscasters I have assembled, over the years. The first one I had was professionally done to the body by either Warmoth or USA Custom Guitars...after that, I shaved down the back of the body heel myself.
It was not difficult to do to the unpainted bodies, myself. Just know how much you're taking off and use shorter neck screws, so they don't protrude thru the fingerboard. Its has a much less "bulky" feel